Please, find method getInterfaceTopFlows in file
scripts/lua/modules/db_utils.lua and  change the line

if(db_debug == true) then io.write(sql.."\n") end

to

if(1) then io.write(sql.."\n") end

Then, look at ntopng console output, you'll see an SQL query. Put that
query directly into MySQL and see if you can get any results. Also please
send that query so we can see if it's ok.


Simone



On Sat, Feb 6, 2016 at 3:27 PM, Luca Deri <[email protected]> wrote:

> John
> can you please do some debugging in lua to see if we create a bad SQL
> query perhaps?
>
> Luca
>
> On 06 Feb 2016, at 15:26, John Klimek <[email protected]> wrote:
>
> I've just checked and the flowsv4 table has lots and lots of data in it...
>
> It seems like it is storing something, because the traffic graph shows
> total throughput and I can go back for several days.  However, it's just
> the 'Flows' section under the graph that doesn't show the specific flow
> information.
>
> On Sat, Feb 6, 2016 at 9:16 AM, Joseph Jackson <[email protected]>
> wrote:
>
>> Can you access the database directly and check to see if the data is
>> being stored?  Any errors in syslog about unable to connect to the db
>> instance?
>>
>>
>>
>> *From:* [email protected] [mailto:
>> [email protected]] *On Behalf Of *John Klimek
>> *Sent:* Saturday, February 06, 2016 8:15 AM
>> *To:* [email protected]
>> *Subject:* [Ntop] Enabled SQL history but not saving flows?
>>
>>
>>
>> I'm using the latest version of ntopng and I've enabled the SQL server
>> connection (using -F), but it doesn't seem to be saving the flow
>> information.
>>
>>
>>
>> For example, if I select my interface and then select 'Historical' it
>> shows me the traffic graph, but on the bottom section under 'IPv4' and
>> 'IPV6', it says 'No results found.'
>>
>>
>>
>> What am I doing wrong?
>>
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>
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